20020+0257 HEI 818

 
 
20h 02m 00.21s +02 56' 31.6" P.A. 28 sep 1.3 mag 10.80,11.40 Sp A3
 
 
Coord 2000
20020+0257
Discov num
HEI 818
Comp
Coord arcsec 2000
20 02 00.21 +02 56 31.6
Date first
1990
Date last
1994
Obs
2
Pa first
27
Pa last
28
P.A. Now (θ)
28°
Sep first
1.4
Sep last
1.3
Sep. Now (ρ)
1.3"
Mag pri
10.80
Mag sec
11.40
delta mag (ΔM)
0.6
Spectral class
A3 (white)
Pri motion ra
-008
Sec motion ra
Pri motion dec
-011
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
27.8
Precise sep
1.29
Cdsa2 id
HEI 818
Constellation
Aquila
Ra deg
20.033391666666667
De deg
2.9421111111111116
last precise pa
27.8
last precise sep
1.29
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20020+0257 HEI 818 1994 2 28 1.3 10.80 11.40 200200.21+025631.6

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